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Spengler, Oswald

(Encyclopedia)Spengler, Oswald spĕngˈglər, Ger. ôsˈvält shpĕngˈglər [key], 1880–1936, German historian and philosopher. His studies covered many fields, among them mathematics, science, philosophy, histo...

Sillanpää, Frans Eemil

(Encyclopedia)Sillanpää, Frans Eemil fräns āˈmĭl sĭlˈlänpăˌ [key], 1888–1964, Finnish novelist. As a young man Sillanpää studied natural science at Helsinki and came under the influence of an artisti...

proof, in mathematics

(Encyclopedia)proof, in mathematics, finite sequence of propositions each of which is either an axiom or follows from preceding propositions by one of the rules of logical inference (see symbolic logic). Mathematic...

Robertson, William

(Encyclopedia)Robertson, William, 1721–93, Scottish churchman and historian. As moderator (1762–80) of the general assembly of the Church of Scotland, he led the moderate party and enforced the right of the sta...

Robinson, James Harvey

(Encyclopedia)Robinson, James Harvey, 1863–1936, American historian, b. Bloomington, Ill. He taught history at the Univ. of Pennsylvania (1891–95) and Columbia (1895–1919), becoming a full professor in 1895. ...

folk medicine

(Encyclopedia)folk medicine, methods of curing by means of healing objects, herbs, or animal parts; ceremony; conjuring, magic, or witchcraft; and other means apart from the formalized practice of medical science. ...

paleontology

(Encyclopedia)paleontology pāˌlēəntŏlˈəjē [key] [Gr.,= study of early beings], science of the life of past geologic periods based on fossil remains. Knowledge of the existence of fossils dates back at least...

Dykstra, Clarence Addison

(Encyclopedia)Dykstra, Clarence Addison dīkˈstrə [key], 1883–1950, American educator and civic administrator, b. Cleveland, grad. Univ. of Iowa, 1903. After graduate work at the Univ. of Chicago, he taught in ...

Cuenca, city, Spain

(Encyclopedia)Cuenca, city , capital of Cuenca prov., E central Spain, in Castile–La Mancha, at the confluence of the Huécar and Júcar rivers, c.3,000 ft (910 m) ...

Chuquet, Nicolas

(Encyclopedia)Chuquet, Nicolas nēkôläˈ shükāˈ [key], c.1450–1500, French mathematician, probably b. Paris. Little is known of Chuquet's life. At Lyons in 1484 he composed a manuscript on the science of num...